KR100880361B1 - Change type extinguishable nozzle by spiral mist spray - Google Patents

Abstract

An adaptable spiral type fire hose nozzle is provided, which can perform the work of converting the fire hose nozzle into the dry type or wet type. An adaptable spiral type fire hose nozzle is constituted as follows. An aperture(10a) is penetration-formed in the central part of the spray tip(10). To the coupling aperture, a dry type airtightness cover and a wet type bulb case(16) are coupled. On the outlet side of the injection path(5), a piston receiving member is protruded. In the piston receiving member, a piston(18) closing the exit of the injection path and a coil spring(19) are inserted.

Description

Change type extinguishable nozzle by spiral mist spray}

The present invention is a vortex-type fine atomizing extinguishing nozzle which allows the sprayed water or the extinguishing agent to be sprayed by the V-shaped notch and the injection hole in the event of a fire, so that it can be vortexed by the V-shaped notch and the injection hole. The wet bulb case equipped with a cover or glass bulb forms a fastening hole to be alternatively fastened, while at the outlet side of the injection passage formed in the body of the fire nozzle, the piston can be supported together with the coil spring when the bulb case is mounted. By forming the piston housing, it is easy and easy to apply the vortex type atomizing extinguishing nozzle with excellent fire suppression performance regardless of the type of extinguishing equipment such as dry or wet type, and convert the extinguishing nozzle into dry or wet type. The present invention also relates to a compatible vortex atomizing fire extinguishing nozzle, which is very easy to carry out.

In general, a continuous reaction between an ignition source, oxygen, and combustibles must exist in order for a fire to proceed continuously. Any of flammables, oxygen sources, or chain reactions, such as blocking the supply of oxygen or blocking the reaction of combustion, If it can be removed, it is possible to extinguish the fire. Based on this principle, a fire extinguishing system for extinguishing a fire at an early stage in the event of a fire is installed and used in a protected object or a protective area.

Existing fire extinguishing facilities directly inject the extinguishing water within the combustion range to ensure that the protected object is cooled by the evaporative heat of the extinguishing water, and at the same time, the water system induces the asphyxiation effect around the protected object by water vapor generated by the evaporation of the extinguishing water. It can be roughly classified into a fire extinguishing system and a gas-based fire extinguishing system which maintains the concentration of oxygen within about 15% or less by using an inert gas as a extinguishing agent.

In the case of the above water-based fire extinguishing and gas-based fire extinguishing, the fire extinguishing water or the extinguishing agent may be diverted from the storage tank in which the extinguishing water or extinguishing agent is stored in case of fire. By transporting at high pressure, the basic principle that the extinguishing water or the extinguishing agent is sprayed through the extinguishing spray nozzle installed in the protected object or the protected area can be regarded as the same.

In addition, a method of injecting extinguishing water or extinguishing agent through the extinguishing spray nozzle is divided into dry (also referred to as dry type or open type) and wet (also wet type or closed type) depending on whether the spray nozzle is opened or not. However, the dry type fire extinguishing system corresponding to the former has no heating element such as a glass bulb, and the spray passage of the spray nozzle is always open. It is to be performed according to the valve operation.

In the case of the wet extinguishing system corresponding to the latter, a heating tube such as a glass bulb is installed in the spray nozzle so that the spray passage of the spray nozzle is closed by the heat shield, while extinguishing water or fire extinguishing is performed. The drug is to be transported in advance until immediately before the injection passage closed by the thermal element, and when the fire occurs, the thermal element is melted or ruptured by heat and at the same time the injection passage is automatically opened so that the extinguishing water or the extinguishing agent is injected. .

In addition, the type of extinguishing water or extinguishing agent sprayed through a fire extinguishing nozzle installed in close proximity to a protected object or a protective area has a large effect on the rapid and effective initial suppression of the fire. The most preferred form of injection of extinguishing agents is to allow the extinguishing water or extinguishing agent to spread rapidly and widely throughout the protected object or the protected area, so that even a small amount of extinguishing water or extinguishing agent is able to extinguish the fire.

Particularly, in the case of using the extinguishing water, by minimizing the particles of the extinguishing water sprayed through the spray nozzle, the flooding of the extinguishing water and the damage of the electrical and electronic equipment and It is possible to prevent the occurrence of such additional loss to the maximum, and to give a vortex flow to the spray of the extinguishing water so as to secure a wider spreading width of the mist-unsprayed extinguishing water particles. It is most desirable for efficient and effective initial suppression.

In order to achieve the above object, the applicant has filed a patent application No. 37131 in 2007 for the vortex-type powder spray extinguishing nozzle (filed April 16, 2007). Patent registration (registration date: November 20, 2007) bar, the applicant's application for the fire extinguishing nozzle had a disadvantage that can be applied only to dry fire extinguishing equipment.

Because of this, even though the fire extinguishing nozzles have excellent fire extinguishing performance, the existing fire extinguishing equipment except for the fire extinguishing nozzles cannot be applied to the protected object or protected area where the wet extinguishing system is composed. In order to overcome these problems, there has been a need for structural improvements that can be applied to wet and dry fire extinguishing systems, while maintaining the excellent fire suppression performance of the previously filed fire nozzles.

The present invention has been made in order to supplement the above problems of the prior application, the compatible vortex-type atomizing extinguishing nozzle according to the present invention is a fire extinguishing water or extinguishing agent is injected from the injection tip when the fire occurs in the V-type notch and the injection hole By reasonably improving the structure of the spray tip and spray passage of the pre-applied fire extinguishing nozzle which can be sprayed by vortex type by vortex type, vortex type fine spray extinguishing with excellent fire suppression performance regardless of the type of extinguishing equipment such as dry or wet type The technical problem is that the nozzle can be easily and easily applied, and the operation of converting the fire nozzle into a dry or wet type is also very simple.

The present invention as a means for achieving the above technical problem, the injection portion for the injection of the extinguishing water or extinguishing agent is fastened to the socket portion of the body formed in the injection passage of the extinguishing water or extinguishing agent, the tip of the spray tip The outer circumferential surface is formed as a tapered portion inclined toward the center of the jetting tip, and a plurality of V-shaped notches are radially cut at regular intervals so as to form a whirlwind shape along the tapered portion, and the V-shaped notch is tapered in the jetting tip. In the fire extinguishing nozzle is cut by the thickness of the injection tip, the injection space formed between the inner surface of the tip of the injection tip and the socket portion of the body exposed in the form of injection holes on each V-shaped notch, the central portion of the injection tip There is a fastening hole through which a dry bulb cover or a wet bulb case equipped with a glass bulb is alternatively fastened and installed. In addition, the piston receiving portion is formed in the outlet side of the injection passage extending in tandem with the injection passage, the piston receiving portion is in close contact with the glass bulb when the wet bulb case is fastened to close the exit of the injection passage and the coil spring It is characterized in that the insertion is installed together.

According to the present invention as described above, while maintaining the excellent fire suppression performance of the pre-extended fire extinguishing nozzle as it is, there is an effect of applying the pre-fired extinguishing nozzle compatible regardless of the type of dry or wet fire extinguishing equipment, and extinguishing nozzle The dry sealing cover and the wet bulb case can be easily replaced and mounted on the spray tip at the same time.In addition, the piston and coil spring can be inserted or removed into the piston housing of the spray passage when the wet bulb case is installed or removed. It is effective to easily convert the selected fire extinguishing nozzle to dry and wet by a simple operation, thereby improving the functionality and application range of the fire extinguishing nozzle further increased, thereby improving the external competitiveness of the product. It also has a very useful effect, such as contributing to securing.

Hereinafter, described in detail with reference to the accompanying drawings, the present invention for achieving the above object is as follows.

First, as shown in FIG. 1, the configuration of the pre- filed fire extinguishing nozzle 1, which is the mother of the present invention, is shown in FIG. In the socket 3, the spray tip 10 for extinguishing the extinguishing water or the extinguishing agent is assembled and detachably assembled, and the extinguishing water or the extinguishing agent is supplied to the rear end of the body 2 (upper part in the drawing). A hose nipple (6) by a fixing nut (7) is integrally connected to the body (2) so that the fire nozzle (1) can be installed on the pipe.

In addition, the coupling portion 3a of the socket portion 3 and the injection tip 10 of the body 2 is interposed with a sealing ring 4 to prevent the extinguishing water or the extinguishing agent from leaking through the coupling portion 3a. The injection passage 5 is formed through the injection passage 8 penetrating the central portion of the hose nipple 6 along the central axis of the body 2 and the socket portion 3, the injection tip 10 The inner side of the front end (lower in the drawing) and the socket 3 of the body 2 are spaced apart at regular intervals so that the space forms the injection space 9 of the extinguishing water or the extinguishing agent.

2 and 3, the injection tip 10 has a cylindrical body for covering the socket portion 3 of the body 2 in the form of a lid, the outer peripheral surface of the tip is the injection tip ( In a state in which the tapered portion 12 is inclined by a predetermined angle toward the central portion of 10, a plurality of V-shaped notches 11 are formed along the tapered portion 12 of the jetting tip 10 so as to form a whirlpool shape. Radial incisions are made at intervals.

In other words, as shown more clearly in FIG. 3, the V-shaped notch 11 is a center point C of the concentric circle in the front view of the jetting tip 10, which is concentrically formed by the tapered portion 12. Based on the imaginary line L extending radially from the concentric circles and dividing the concentric circles into a plurality of sectors, the taper portion 12 may be shifted with the same angle in the same direction with respect to each imaginary line L. By cutting through V-cutting process using CNC lathes along the length direction, the overall shape forms a whirlwind shape.

In addition, in the drawing, a total of eight V-shaped notches 11 are formed along each of the tapered portions 12, one for each angle of 45 °, and each V-shaped notch 11 refers to the virtual line L. FIG. Although it is shown to form a whirlwind shape in a counterclockwise direction while inclining at an angle of about 15 °, the V-shaped notch 11 includes the virtual line L and the number of V-shaped notches 11. The angle and direction to be made can be arbitrarily changed by the user.

However, the number of V-shaped notches 11 is at least six so as to increase the vortex effect of each V-shaped notch 11 and thus the spraying width of the extinguishing water or the extinguishing agent when the extinguishing water or the extinguishing agent is injected. Preferably, the V-shaped notch 11 and the imaginary line L become larger, so that the vortex-type spraying performance of the extinguishing water or the extinguishing agent is also improved. The number of V-shaped notches 11 is preferably not more than 24 so as to secure an inclination angle (minimum of 10 °) with () and at the same time reduce the processing cost.

In addition, as shown clearly in the enlarged portion of FIG. 1, when the V-shaped notch 11 is formed along the tapered portion 12 by V-cutting, the V-shaped notch 11 is formed. When the depth of the spray tip 10 is about the thickness (or slightly deeper) of the spray tip 10, the spray space formed between the inner surface of the tip of the spray tip 10 and the socket 3 of the body 2 is formed. (9) is exposed on the respective V-shaped notches 11 in the form of fine injection holes 13.

Therefore, as the fine injection hole 13 is automatically formed on the respective V-shaped notches 11 in the process of processing the V-shaped notch 11, the injection hole 13, There is no need to additionally perform a separate machining such as boring to form, although the taper portion 12 is shown as having an angle of about 45 ° in the drawing, the angle formed by the taper portion 12 Of course, the user can adjust arbitrarily.

In addition, when the V-shaped notch 11 is formed by V-cutting processing using a CNC lathe or the like, the V-shaped notch 11 is formed in an inclined angle by a predetermined angle instead of being formed in the vertical direction. 12), the extinguishing water or extinguishing agent is sprayed at an angle from each V-shaped notch 11 at an angle, so that the overall flow of the extinguishing water or extinguishing agent can be formed into a more effective and strong vortex flow. do.

The fire extinguishing nozzle 1 according to the present invention for applying the previously filed fire extinguishing nozzle 1 having the configuration as described above to dry and wet fire extinguishing facilities is shown in FIGS. 4 and 5, respectively, as shown in FIG. In the center of the tip 10, a dry type closed cover 14 or a wet type bulb case 16 equipped with a glass bulb 15 is alternatively fastened and installed. The hole 10a is formed through, and the piston receiving portion 5a is formed to extend stepwise in series with the injection passage 5 at the outlet side of the injection passage 5.

The airtight cover 14 seals the fastening hole 10a formed in the spray tip 10 when the fire extinguishing nozzle 1 is applied to a dry fire extinguishing facility, and flows into the spray space 9 from the spray passage 5. It is responsible for the function that the entire amount of the extinguishing water or the extinguishing agent is sprayed along the injection hole 13 and the V-shaped notch 11 of the injection tip 10, as shown in FIG. Although it may be a representative example, in addition to that can seal the fastening hole (10a) of the injection tip 10 can be applied to other various types of cover of course.

5, the bulb case 16 is formed in the shape of a pipe in which the glass bulb 15, which is a heat-sensitive member, is mounted, and the upper outer peripheral surface of the bulb case 16 is formed. The threaded portion 16a is fastened along the fastening hole 10a of the injection tip 10, and the glass bulb 15 has a liquid that thermally expands upon heating in a transparent glass tube, and thus, a fire Glass tube is ruptured by thermal expansion of liquid when it occurs. It is widely used in wet extinguishing equipment such as sprinkler.

The liquid stored in the glass bulb 15 has a different color according to the temperature to be thermally expanded and expanded, for example, the liquid that is thermally expanded and expanded at 57 ° C. is orange and the liquid is thermally expanded and expanded at 68 ° C. Red, liquid that is thermally expanded and expanded at 79 ° C is yellow, liquid that is thermally and expanded at 93 ° C is green, and liquid that is thermally and expanded at 141 ° C is blue, and so on. The glass bulb 15 may be selected and applied.

In addition, the bulb case 16 may be prevented from being damaged when the bulb case 16 is handled, the glass bulb 15 may be more stably supported, and the bulb case 16 may be quickly thermally fired. It is preferable to apply the bulb plate 17 made of brass to the inside of the glass bulb 15 to be mounted to the bulb case 16 together with the bulb plate 17, the bulb case 16 and the bulb plate Along the side portion (periphery) of (17), the liquid stored in the glass bulb 15 can be released when the glass bulb 15 is ruptured, as well as a heat-sensitive liquid outlet so as to quickly detect the heat generated from the fire ( 20) is incision formed.

When the wet bulb case 16 is installed and used in the fastening hole 10a of the spray tip 10 as described above, the upper end of the bulb case 16 passes through the piston housing portion 5a of the spray passage 5. By being supported in close contact with the glass bulb 15, while closing the outlet of the injection passage (5) to prevent leakage of the extinguishing water or extinguishing agent is inserted into the state with the coil spring (19) interposed therebetween, Extinguishing nozzle (1) of the present invention will be able to be applied to the wet fire extinguishing equipment.

In the drawing, the piston 18 has a groove in which the upper end of the glass bulb 15 is inserted into the lower rod Rod closely contacting the glass bulb 15, and the upper side of the piston 18 is inserted into the piston housing 5a. The head is provided with a sealing ring 18a for closing the outlet of the injection passage 5, and also along the upper inner circumferential surface of the bulb case 16 into which the lower rod of the piston 18 is inserted. 18 and a sealing ring 16b in close contact with each other, the coil spring 19 is formed to be caught by a step formed between the injection passage 5 and the piston housing 5a.

After the extinguishing nozzle 1 of the present invention is set as a wet nozzle as described above, the extinguishing nozzle 1 is fixed to a structure such as a plate 21 or the like existing in a protected object or a space to be protected. When a fire occurs in the space to be protected, the glass bulb 15, which is a heat-sensitive body, ruptures, and at the same time, as shown in FIG. 6, the piston 18 closing the outlet of the injection passage 5 is connected to the coil spring 19. Due to the resilience and the pressure of the extinguishing water or extinguishing agent, it is quickly pushed down.

When the piston 18 is pushed downward at the same time as the glass bulb 15 is ruptured as described above, the outlet of the injection passage 5 is opened so that the extinguishing water or the extinguishing agent is discharged from the injection space 9. 13 and the V-shaped notch 11, as well as the head portion of the piston 18 is firmly in contact with the upper end of the bulb case 16 by the elastic force of the coil spring 19, of course, the bulb case 16 Lower rod of the piston (18) inserted through the upper end of the) is in close contact with the sealing ring (16b) and the bulb plate (17) in double to prevent the leakage of the extinguishing water or extinguishing agent through the portion.

Fire extinguishing nozzle (1) of the present invention used for extinguishing a fire as described above can be recycled as a wet or dry nozzle, fire extinguishing nozzle (1) in case of maintaining the existing wet extinguishing facility as it is after extinguishing fire The new bulb case (16) equipped with a glass bulb (15) is installed on the injection tip (10) of the nozzle, and when the existing wet fire extinguishing system is changed to a dry fire extinguishing system after extinguishing the fire, the fire extinguishing nozzle ( 1) remove the spray tip 10 from the bulb case 16, the piston 18 and the coil spring (19) to remove, and then dry sealing cover (14) in the fastening hole (10a) of the spray tip (10) ) So that it can be recycled as a dry nozzle.

As described above, the compatible vortex-type fine spray extinguishing nozzle 1 according to the present invention is provided with extinguishing water or extinguishing agent sprayed from the spray tip 10 by the respective spray holes 13 and the V-shaped notch 11. Fire-extinguishing nozzles that are pre- filed by rational structural improvement of the spray tip 10 and the spray passage 5 while maintaining excellent fire suppression performance of the pre- filed fire-extinguishing nozzle 1 by allowing them to be sprayed by vortex type ( 1) can be applied interchangeably regardless of the type of dry extinguishing system or wet extinguishing system.

In addition, the dry airtight cover 14 and the wet bulb case 16 may be easily replaced and mounted on the spray tip 10 of the fire extinguishing nozzle 1, and the wet bulb case 16 may be installed at the same time. The fire-extinguishing nozzle (1) pre- filed by the simple operation of inserting or separating only the piston (18) and the coil spring (19) into the piston housing (5a) of the injection passage (5) during the installation or removal of It can be easily converted to, thereby improving the functionality of the pre- filed fire extinguishing nozzle (1) and its scope even more, it will be able to contribute to the aspect of securing the external competitiveness of the product.

1 is a side cross-sectional view of a pre- filed vortex atomization type fire extinguishing nozzle.

2 is a perspective view of a spray tip applied to the prior application.

3 is a front view of FIG. 2;

Figure 4 is a side cross-sectional view of a state applied to the compatible vortex-type fine spray extinguishing nozzle according to the present invention for dry use.

Figure 5 is a side cross-sectional view of a state applied to the compatible vortex-type fine spray extinguishing nozzle according to the present invention for wet use.

Figure 6 is a side cross-sectional view showing the injection state of the fire nozzle shown in FIG.

<Explanation of symbols for main parts of drawing>

1: fire extinguishing nozzle 2: body 3: socket

3a: fastening part 4: sealing ring 5: injection passage

5a: Piston housing 6: Hose nipple 7: Fixing nut

8: injection passage 9: injection space 10: injection tip

10a: fastening hole 11: V-shaped notch 12: tapered portion

13 injection hole 14 sealing cover 14a threaded portion

15 glass bulb 16 bulb case 16a screw

16b: sealing ring 17: bulb plate 18: piston

18a: sealing ring 19: coil spring 20: thermal liquid outlet

21: plate

Claims (1)

The injection portion 10 of the body 2 of the body 2 formed with the injection passage 5 of the extinguishing water or the extinguishing agent is fastened and installed with a spray tip 10 for spraying the extinguishing water or the extinguishing agent, and The outer circumferential surface of the tip is formed of a tapered portion 12 which is inclined toward the center portion of the jetting tip 10, and the plurality of V-shaped notches 11 are radially spaced at regular intervals so that a plurality of V-shaped notches 11 form a tornado shape along the tapered portion 12. Incision is formed in the, the V-shaped notch 11 is cut by the thickness of the injection tip 10 in the tapered portion 12 of the injection tip 10, the front end inner surface and the body (2) of the injection tip 10 In the fire extinguishing nozzle (1) in which the injection space (9) formed between the socket portions (3) is exposed on the respective V-shaped notches (11) in the form of injection holes (13), Dry type sealed cover 14 or wet type bulb case 16 equipped with a glass bulb 15 is alternatively fastened and installed at the center portion of the jetting tip 10. Fastening hole 10a is formed through, On the outlet side of the injection passage (5), the piston receiving portion (5a) is formed to extend stepwise in series with the injection passage (5), The piston 18 is inserted into and installed with the coil spring 19 in close contact with the glass bulb 15 when the wet bulb case 16 is fastened to close the outlet of the injection passage 5. Compatible vortex type atomization extinguishing nozzle, characterized in that.

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